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Header ‘R_exts/Utils.h’ no longer contains a declaration for ‘F77_SUB(interv)’. This is intended to be called from Fortran and was wrongly declared: ‘LOGICAL’ in Fortran corresponds to ‘int *’ not ‘Rboolean *’.
‘trace(coerce, ..)’ now works correctly, fixing PR#18823 thanks to Mikael Jagan.